Message by Mihaela Apetroaie-Cristea:
Hi,
When I am trying to run the SPIS simulation, I get the following error. I am not sure what I have to do. Thank you for your help! 
Stacktrace:
java.lang.ArrayIndexOutOfBoundsException: 0
at spis.Solver.Poisson.PoissonInit.quicksort(PoissonInit.java:150)
at spis.Solver.Poisson.PoissonInit.renumcklb(PoissonInit.java:225)
at spis.Solver.Poisson.PoissonInit.cuthilMackee(PoissonInit.java:91)
at spis.Solver.Poisson.ConjGrad3DUnstructPoissonSolver.init(ConjGrad3DUnstructPoissonSolver.java:332)
at spis.Solver.Poisson.ConjGrad3DUnstructPoissonSolver.(ConjGrad3DUnstructPoissonSolver.java:185)
at spis.Top.Simulation.SimulationFromUIParams.init(SimulationFromUIParams.java:933)
at spis.Top.Simulation.SimulationFromUIParams.(SimulationFromUIParams.java:438)
at spis.Top.Top.NumTopFromUI.(NumTopFromUI.java:157)
at org.spis.ui.ui2num.util.Ui2Num.buildNumTopFromUI(Ui2Num.java:355)
at org.spis.ui.ui2num.command.NumTopFromUICommand.run(NumTopFromUICommand.java:162)
at org.spis.ui.ui2num.command.NumTopFromUICommand.run(NumTopFromUICommand.java:52)
at org.keridwen.core.messaging.AbstractCommand.execute(AbstractCommand.java:200)
at org.keridwen.core.messaging.DefaultBundleController$CallableCommand.call(DefaultBundleController.java:259)
at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)
at java.util.concurrent.FutureTask.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Message by Mihaela Apetroaie-Cristea:
I also get the error: volume mesh surface has no neighbor
Message by Mihaela Apetroaie-Cristea:
sorry: I also get the error: volume mesh surface 73 has no neighbor
Message by Jean-Charles Mateo-Velez:
Hi,
there is a problem with the mesh. Are you suing thin wires ?